40392930 has 32 divisors (see below), whose sum is σ = 97910208. Its totient is φ = 10664000.

The previous prime is 40392887. The next prime is 40392931. The reversal of 40392930 is 3929304.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (40392931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3636 + ... + 9695.

It is an arithmetic number, because the mean of its divisors is an integer number (3059694).

Almost surely, 2^40392930 is an apocalyptic number.

40392930 is an abundant number, since it is smaller than the sum of its proper divisors (57517278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40392930 is a wasteful number, since it uses less digits than its factorization.

40392930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13442.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 40392930 is about 6355.5432497938. The cubic root of 40392930 is about 343.1113771586. Note that the first 3 decimals are identical.

40392930 divided by its sum of digits (30) gives a palindrome (1346431).

The spelling of 40392930 in words is "forty million, three hundred ninety-two thousand, nine hundred thirty".